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ALSA: hda: call runtime_allow() for all hda controllers

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[ Upstream commit 9a6418487b566503c772cb6e7d3d44e652b019b0 ]

Before the pci_driver->probe() is called, the pci subsystem calls
runtime_forbid() and runtime_get_sync() on this pci dev, so only call
runtime_put_autosuspend() is not enough to enable the runtime_pm on
this device.

For controllers with vgaswitcheroo feature, the pci/quirks.c will call
runtime_allow() for this dev, then the controllers could enter
rt_idle/suspend/resume, but for non-vgaswitcheroo controllers like
Intel hda controllers, the runtime_pm is not enabled because the
runtime_allow() is not called.

Since it is no harm calling runtime_allow() twice, here let hda
driver call runtime_allow() for all controllers. Then the runtime_pm
is enabled on all controllers after the put_autosuspend() is called.

Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20200414142725.6020-1-hui.wang@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hui Wang 2020-04-14 22:27:25 +08:00 committed by Greg Kroah-Hartman
parent 4172234498
commit e73a9b6c97
1 changed files with 1 additions and 0 deletions
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1
sound/pci/hda/hda_intel.c
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@ -2477,6 +2477,7 @@ static int azx_probe_continue(struct azx *chip)
if (azx_has_pm_runtime(chip)) {
pm_runtime_use_autosuspend(&pci->dev);
pm_runtime_allow(&pci->dev);
pm_runtime_put_autosuspend(&pci->dev);
}